I agree that some form of punishment is in order, for no other reason than to try and lessen the chances of a repeat performance.
Monetary punishments hit some folks much harder than others and wouldn’t hit the boy very much at all.
I like some of these “creative” judges who come up with memorable punishments that leave an ever lasting impression without taking somebody’s grocery or mortgage money.
I’m not sure how far away the kid got before he was stopped, but perhaps an inconvenient officer supervised long walk back from there (or some point along the route) for all involved (parents, big sis, lil brother).
If the family started going off in the direction of declaring that “cruel and unusual punishment,” I’d say “Okay, no argument, then the fine will be $________ / _________. How’s that?” (fill in with a very large dollar amount or jail sentence).
I’ve seen situations where judges make people wear large signs and stand near high traffic areas in the neighborhood, signs that announce what kind of irresponsible behavior was demonstrated. It’s advertising by signage or jail.